Illustrate in detail about the cell, Biology

Assignment Help:

Illustrate in detail about the Cell

The present day study of cells combines many scientific disciplines, like biochemistry, biophysics, genetics, microscopy and physiology. A great deal has been understood about cells, especially in the last 35 years, regarding how they are constructed, how they function, and how they work together in complex organisms. Still, much remains to be learned. The term 'cell' was first used by Robert Hooke in 1664 to denote the little box-like structures, which he observed in cork tissue under a primitive microscope. A contemporary of Hooke, Antonie van Leeuwenhoek, discovered sperm cells, red blood cells and a variety of microorganisms, again using a microscope consisting of a single lens. However, these initial observations led to nearly two centuries of microscopic study of cells, and, with the gradual introduction of more and more powerful microscopes, the cell nucleus was also discovered. Thus, the cellular nature of all plants and animals came to be recognised. By 1830's, it was proposed that all organisms are constructed of-cells. This statement is now known as the cell doctrine or cell theory.

 


Related Discussions:- Illustrate in detail about the cell

taxonomy, what are the phase of alpha taxonomy

what are the phase of alpha taxonomy?

Which term refers to muscles with less than normal tone, In biological stud...

In biological studies which of the below terms is used to refer to muscles with less than normal tone? Is it: a) Latent b) Atonic c) Flaccid d) None of these ANSWE

What is bone modeling, Bone Modeling It is a surface-specific activity ...

Bone Modeling It is a surface-specific activity (apposition or resorption) that produces a net change in the size and/or shape of a bone after initial bone formation in the emb

Explain bruce protocol, Q. Explain Bruce Protocol? Bicycle Ergometry ...

Q. Explain Bruce Protocol? Bicycle Ergometry Most bicycle test are performed sitting upright, but supine bicycle test have become more popular. Treadmill Test The

What are some examples of organs and tissues, What are some examples of org...

What are some examples of organs and tissues where mitosis is more frequent, less frequent or practically absent? Generally in vertebrates mitosis is more frequent in a tissue

Tolerance range, Maximum and minimum range of an animal with the factors of...

Maximum and minimum range of an animal with the factors of Ph Salinity Pressure Relative human

Show the peptide found in the brain, Q. Show the Peptide found in the brain...

Q. Show the Peptide found in the brain? There are as many as 300 peptide neurotransmitters found in the brain. Peptide is a short protein consisting of fewer than 100 amino aci

Growth-form and structure, Growth-form and Structure In a community the...

Growth-form and Structure In a community the number of species and size of their populations vary greatly. A community may have one or several species. The environmental factor

Summary of determinants of health status, Normal 0 false fals...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Which terrestrial vertebrate group is extremely rare, Which terrestrial ver...

Which terrestrial vertebrate group is extremely rare in deserts? Amphibians are terrestrial vertebrates extremely rare in desert environments (although there are a some species

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd